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  • microsoft synchronization sample for Oracle(Server side)

    microsoft synchronization sample for Oracle(Server side)

    標簽: synchronization microsoft Oracle Server

    上傳時間: 2014-01-19

    上傳用戶:372825274

  • german side channel attack description

    german side channel attack description

    標簽: description channel german attack

    上傳時間: 2014-01-24

    上傳用戶:caixiaoxu26

  • usb-single side diagram for isp microcontroller

    usb-single side diagram for isp microcontroller

    標簽: microcontroller usb-single diagram side

    上傳時間: 2014-10-25

    上傳用戶:ayfeixiao

  • VBfromentrytopractice

    VB從入門到實踐。很適合vb的入門者。一邊學一邊做,更快掌握。-VB from entry to practice. Vb is very suitable for beginners. side w

    標簽: VBfromentrytopractice

    上傳時間: 2013-05-29

    上傳用戶:shizhanincc

  • VC_DEMO_GPRS

    這個是GPRS PC端軟件,用于GPRS串口模塊測試用。-This is a GPRS PC side software for GPRS serial module test.

    標簽: VC_DEMO_GPRS

    上傳時間: 2013-08-04

    上傳用戶:lx9076

  • 射頻集成電路設計John Rogers(Radio Freq

    Radio Frequency Integrated Circuit Design I enjoyed reading this book for a number of reasons. One reason is that itaddresses high-speed analog design in the context of microwave issues. This isan advanced-level book, which should follow courses in basic circuits andtransmission lines. Most analog integrated circuit designers in the past workedon applications at low enough frequency that microwave issues did not arise.As a consequence, they were adept at lumped parameter circuits and often notcomfortable with circuits where waves travel in space. However, in order todesign radio frequency (RF) communications integrated circuits (IC) in thegigahertz range, one must deal with transmission lines at chip interfaces andwhere interconnections on chip are far apart. Also, impedance matching isaddressed, which is a topic that arises most often in microwave circuits. In mycareer, there has been a gap in comprehension between analog low-frequencydesigners and microwave designers. Often, similar issues were dealt with in twodifferent languages. Although this book is more firmly based in lumped-elementanalog circuit design, it is nice to see that microwave knowledge is brought inwhere necessary.Too many analog circuit books in the past have concentrated first on thecircuit side rather than on basic theory behind their application in communications.The circuits usually used have evolved through experience, without asatisfying intellectual theme in describing them. Why a given circuit works bestcan be subtle, and often these circuits are chosen only through experience. Forthis reason, I am happy that the book begins first with topics that require anintellectual approach—noise, linearity and filtering, and technology issues. Iam particularly happy with how linearity is introduced (power series). In therest of the book it is then shown, with specific circuits and numerical examples,how linearity and noise issues arise.

    標簽: Rogers Radio John Freq

    上傳時間: 2014-12-23

    上傳用戶:han_zh

  • pcb layout design(臺灣硬件工程師15年經驗

    PCB LAYOUT 術語解釋(TERMS)1. COMPONENT side(零件面、正面)︰大多數零件放置之面。2. SOLDER side(焊錫面、反面)。3. SOLDER MASK(止焊膜面)︰通常指Solder Mask Open 之意。4. TOP PAD︰在零件面上所設計之零件腳PAD,不管是否鑽孔、電鍍。5. BOTTOM PAD:在銲錫面上所設計之零件腳PAD,不管是否鑽孔、電鍍。6. POSITIVE LAYER:單、雙層板之各層線路;多層板之上、下兩層線路及內層走線皆屬之。7. NEGATIVE LAYER:通常指多層板之電源層。8. INNER PAD:多層板之POSITIVE LAYER 內層PAD。9. ANTI-PAD:多層板之NEGATIVE LAYER 上所使用之絕緣範圍,不與零件腳相接。10. THERMAL PAD:多層板內NEGATIVE LAYER 上必須零件腳時所使用之PAD,一般稱為散熱孔或導通孔。11. PAD (銲墊):除了SMD PAD 外,其他PAD 之TOP PAD、BOTTOM PAD 及INNER PAD 之形狀大小皆應相同。12. Moat : 不同信號的 Power& GND plane 之間的分隔線13. Grid : 佈線時的走線格點2. Test Point : ATE 測試點供工廠ICT 測試治具使用ICT 測試點 LAYOUT 注意事項:PCB 的每條TRACE 都要有一個作為測試用之TEST PAD(測試點),其原則如下:1. 一般測試點大小均為30-35mil,元件分布較密時,測試點最小可至30mil.測試點與元件PAD 的距離最小為40mil。2. 測試點與測試點間的間距最小為50-75mil,一般使用75mil。密度高時可使用50mil,3. 測試點必須均勻分佈於PCB 上,避免測試時造成板面受力不均。4. 多層板必須透過貫穿孔(VIA)將測試點留於錫爐著錫面上(Solder side)。5. 測試點必需放至於Bottom Layer6. 輸出test point report(.asc 檔案powerpcb v3.5)供廠商分析可測率7. 測試點設置處:Setup􀃆pads􀃆stacks

    標簽: layout design pcb 硬件工程師

    上傳時間: 2013-10-22

    上傳用戶:pei5

  • Lakewood (MAXREFDES7#)3.3V Input, ±12V (±15V) Output Isolated Power Supply

    Abstract: This document details the Lakewood (MAXREFDES7#) subsystem reference design, a 3.3V input, ±12V (±15V) output, isolated power supply. The Lakewood reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and two wide input range and adjustable output low-dropout linear regulators (LDOs). Test results and hardware files are included.

    標簽: MAXREFDES Lakewood Isolated Output

    上傳時間: 2013-11-02

    上傳用戶:fengzimili

  • Riverside (MAXREFDES8#)3.3V Input, 12V (15V) Output Isolated Power Supply

    Abstract: This document details the Riverside (MAXREFDES8#) subsystem reference design, a 3.3V input, 12V (15V) output, isolated power supply. The Riverside reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and one wide input range and adjustable output low-dropout linear regulator (LDO). Test results and hardware files are included.

    標簽: Riverside MAXREFDES Isolated Output

    上傳時間: 2013-11-16

    上傳用戶:會稽劍客

  • MAX14885E VGA交叉開關電源排序

      The MAX14885E, a 2:2 VGA switch, connects a VGA source to a VGA monitor. To ease direct connection to graphics controllers orthe ASIC, the MAX14885E has two supplies: VCC, a 5V ±5% supply, drives the VGA side interface; and the VL supply sets the logicswitching thresholds on the digital input pins (EN, S00, S01, S10, S11, SHA, SHB, SVA, and SVB). This application note documentsthe proper sequencing of the VCC and VL power supplies on power-up.

    標簽: 14885E 14885 MAX VGA

    上傳時間: 2013-10-23

    上傳用戶:wuchunzhong

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